Home / 22,288.44-30,756.66-12,729.42

Finding the Fourth Proportional to 22,288.44, 30,756.66 and 12,729.42

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Solution

The fourth proportional to 22,288.44, 30,756.66 and 12,729.42 is: 17,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,288.44 : 30,756.66 = 12,729.42 : x
  2. Step 2: Convert to fraction form
    22,288.44/30,756.66 = 12,729.42/x
  3. Step 3: Cross multiply
    22,288.44x = 30,756.66 × 12,729.42
  4. Step 4: Simplify right side
    22,288.44x = 391,514,442.94
  5. Step 5: Solve for x
    x = 391,514,442.94/22,288.44
  6. Step 6: Final answer
    x = 17,565.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.